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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
UNITED THERAPEUTICS CORPORATION	1040 SPRING STREET SILVER SPRING MD 20910

International Classification(s)

• C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Batra, Hitesh	Herndon, US	62	959
Tuladhar, Sudersan M	Silver Spring, US	24	645
Walsh, David A	Spotsylvania, US	72	2187

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 14, 2028

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 14, 2017	US,9593061,B2   US9593061B2	GRANTED PATENT AS SECOND PUBLICATION
April 21, 2016	US,20160107973,A1   US20160107973A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9593061

Synthesis of intermediates for producing prostacyclin derivatives

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